Results 61 to 70 of about 3,278 (176)

Synthesis and Properties of Bis-Porphyrin Molecular Tweezers: Effects of Spacer Flexibility on Binding and Supramolecular Chirogenesis

open access: yesMolecules, 2015
Ditopic binding of various dinitrogen compounds to three bisporphyrin molecular tweezers with spacers of varying conformational rigidity, incorporating the planar enediyne (1), the helical stiff stilbene (2), or the semi-rigid glycoluril motif fused to ...
Magnus Blom   +7 more
doaj   +1 more source

Monoclonal antibodies against metalloporphyrins. Specificity of interaction with structurally different metalloporphyrins

open access: yesFEBS Letters, 1994
Monoclonal antibodies against Pd‐coproporphyrin I have been obtained. The antibody specificity for free as well as for conjugated Pd‐coproporphyrin I is characterized. Affinity constants are estimated for 3 monoclonal antibodies effectively interacting with free Pd‐coproporphyrin I.
Savitsky, Alexander P.   +3 more
openaire   +2 more sources

MODIFICATION OF WATER POLYMER COMPOSITIONS FOR ELECTRODEPOSITION BY METALLOPORPHYRINS

open access: yesТонкие химические технологии, 2016
It is known that coatings produced by electrodeposition, cured at high temperatures (180ºC and above).The aim of this study is reducing the energy intensity of production of polymer coatings, improving physical, mechanical properties of the polymer ...
G. N. Bespalova   +5 more
doaj   +1 more source

Mass spectrometry of metalloporhyrins. 1. Mass spectra of octaethylporphines cobalt, nickel, copper

open access: yesТонкие химические технологии, 2010
Mass spectra of octaethylporphyrines of cobalt, nickel, copper with electron ionization were obtained. Molecular ions with isotope peaks and the peaks formed by separation hydrogen atoms from porhyrins core have maximum intensity.
A. A. Perov   +3 more
doaj  

Influence of the Nature of Porphyrin and Extraligand on the Stability of Zinc Extracomplexes

open access: yesMolecules, 2000
The mutual influence of ligands within the structure of Zn-porphyrins on the thermodynamic stability of the latter was investigated.
Oleg A. Golubchikov   +4 more
doaj   +1 more source

Clinically Important Features of Porphyrin and Heme Metabolism and the Porphyrias

open access: yesMetabolites, 2014
Heme, like chlorophyll, is a primordial molecule and is one of the fundamental pigments of life. Disorders of normal heme synthesis may cause human diseases, including certain anemias (X-linked sideroblastic anemias) and porphyrias.
Siddesh Besur   +3 more
doaj   +1 more source

Supramolecular systems and their connection with metal–organic structures

open access: yesFrontiers in Chemistry
Supramolecular structures with specific applications are a pillar in several areas of science. Thus, from a contemporary point of view, there are several reasons to embrace a systematic order of the supramolecular concept itself.
Rodrigo Cué-Sampedro   +1 more
doaj   +1 more source

Synthesis, spectroscopic characterization and thermogravimetric analysis of two series of substituted (metallo)tetraphenylporphyrins

open access: yesBeilstein Journal of Nanotechnology, 2017
Subsequent treatment of H2TPP(CO2H)4 (tetra(p-carboxylic acid phenyl)porphyrin, 1) with an excess of oxalyl chloride and HNR2 afforded H2TPP(C(O)NR2)4 (R = Me, 2; iPr, 3) with yields exceeding 80%.
Rasha K. Al-Shewiki   +6 more
doaj   +1 more source

Superprotonic Conductivity in a Metalloporphyrin-Based SMOF (Supramolecular Metal–Organic Framework)

open access: yesNanomaterials
Metal–organic frameworks and supramolecular metal–organic frameworks (SMOFs) exhibit great potential for a broad range of applications taking advantage of the high surface area and pore sizes and tunable chemistry.
Arkaitz Fidalgo-Marijuan   +2 more
doaj   +1 more source

Mass spectrometry of metalloporphyrins. 2. Vapor pressure of cobalt, nickel, and copper octaethylporphyrinates

open access: yesТонкие химические технологии, 2010
The volatility of cobalt, nickel, and copper octaethylporphyrinates was studied by the Knudsen method. Thermodynamical characteristics of sublimation of these compounds were obtained.
D. S. Lutokhina   +3 more
doaj  

Home - About - Disclaimer - Privacy